My place of employment recently signed everyone up for a retirement fund where they take 3% out of every paycheck. I opt out of benefits so even though they took my money, I get none of the perks, such as them matching the amount. So I called and told them that I no longer wanted to contribute and that I wanted the money they took out of my last check refunded to me. They came back and said they sent out a letter telling us and giving us the option to call and opt out. I told them that by the time I received the letter, there was no time to opt out before the money was processed out of my check. They even told me that opting out of the contribution takes time to process and it may even remove money from my next paycheck. The only way to be the money is when you leave the company. I told them I never okayed them to remove money, they didn't give me enough notice to opt out in time, and it want my money refunded. They told me no. Is this not completely ridiculous and illegal? What should I do?

Re: Question for attorneys (or anyone else who can help)
The pp's covered it pretty well. The short answer is that no, it is not illegal, although they really should have give you ample notice to opt out. And no, they cannot issue you a refund. Once the money is in a qualified retirement plan, the only way to get a distribution (other than a hardship withdrawal) is to wait until you leave the company.
I will also echo that the matching contribution should not be tied to your other benefits. I've never heard of a plan that did that and I think it is likely not allowed. You should double check on that.
That was way too nice of you to give such a helpful and thoughtful response to such a nasty jerk.
Whoa, WTF. This was supposed to be on an entirely different post. I don't know how it got over here!
I was trying to quote @femshep on the post about the person who wanted to take her newborn twins to work and then blew up when people answered her. Ipad fail.
My husband and I do our own investing.